2-Methyl-5-(methylthio)pyridine CAS 31181-60-9

Purity 97%+In StockPharmaceutical Standards
CAS No.31181-60-9
Molecular FormulaC7H9NS
Molecular Weight139.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Methyl-5-(methylthio)pyridine CAS 31181-60-9 chemical structure

Description

The occurrence of 2-Methyl-5-(methylthio)pyridine is closely related to a nitrile group, sulfur-containing functionality, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 2-Methyl-5-(methylthio)pyridine (CAS 31181-60-9), a certified reference material (molecular formula C7H9NS, MW 139.22 g/mol) for analytical method development and quality control.

Based on its molecular formula C7H9NS, 2-Methyl-5-(methylthio)pyridine contains a nitrile group, sulfur-containing functionality, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 139.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), 2-Methyl-5-(methylthio)pyridine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC7H9NS
Molecular Weight139.22 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1965
Nitrogen Atoms1
Sulfur Atoms1

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